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<?php
declare (strict_types=1);
namespace Rector\Php56\Rector\FuncCall;
use PhpParser\Node;
use PhpParser\Node\Arg;
use PhpParser\Node\Expr\BinaryOp\Pow;
use PhpParser\Node\Expr\FuncCall;
use Rector\Core\NodeAnalyzer\ArgsAnalyzer;
use Rector\Core\Rector\AbstractRector;
use Rector\Core\ValueObject\PhpVersionFeature;
use Rector\VersionBonding\Contract\MinPhpVersionInterface;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
* @see \Rector\Tests\Php56\Rector\FuncCall\PowToExpRector\PowToExpRectorTest
*/
final class PowToExpRector extends \Rector\Core\Rector\AbstractRector implements \Rector\VersionBonding\Contract\MinPhpVersionInterface
{
/**
* @readonly
* @var \Rector\Core\NodeAnalyzer\ArgsAnalyzer
*/
private $argsAnalyzer;
public function __construct(\Rector\Core\NodeAnalyzer\ArgsAnalyzer $argsAnalyzer)
{
$this->argsAnalyzer = $argsAnalyzer;
}
public function getRuleDefinition() : \Symplify\RuleDocGenerator\ValueObject\RuleDefinition
{
return new \Symplify\RuleDocGenerator\ValueObject\RuleDefinition('Changes pow(val, val2) to ** (exp) parameter', [new \Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample('pow(1, 2);', '1**2;')]);
}
/**
* @return array<class-string<Node>>
*/
public function getNodeTypes() : array
{
return [\PhpParser\Node\Expr\FuncCall::class];
}
/**
* @param FuncCall $node
*/
public function refactor(\PhpParser\Node $node) : ?\PhpParser\Node
{
if (!$this->isName($node, 'pow')) {
return null;
}
if (\count($node->args) !== 2) {
return null;
}
if (!$this->argsAnalyzer->isArgsInstanceInArgsPositions($node->args, [0, 1])) {
return null;
}
/** @var Arg $firstArgument */
$firstArgument = $node->args[0];
/** @var Arg $secondArgument */
$secondArgument = $node->args[1];
return new \PhpParser\Node\Expr\BinaryOp\Pow($firstArgument->value, $secondArgument->value);
}
public function provideMinPhpVersion() : int
{
return \Rector\Core\ValueObject\PhpVersionFeature::EXP_OPERATOR;
}
}
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